<template>
  <div>
    <el-breadcrumb separator-class="el-icon-arrow-right">
      <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>商品管理</el-breadcrumb-item>
      <el-breadcrumb-item>添加商品</el-breadcrumb-item>
    </el-breadcrumb>

    <el-card class="addgoodscard">
      <el-alert
        title="添加商品信息"
        type="info"
        show-icon>
      </el-alert>

      <el-steps :space="200" :active="parseInt(activeIndex)" finish-status="success" align-center >
        <el-step title="基本信息"></el-step>
        <el-step title="商品参数"></el-step>
        <el-step title="商品属性"></el-step>
        <el-step title="商品图片"></el-step>
        <el-step title="商品内容"></el-step>
        <el-step title="完成"></el-step>
      </el-steps>

      <el-form :model="addGoodsForm" :rules="addGoodsFormrules" ref="addGoodsForm" label-position="top">
        <el-tabs tab-position="left" v-model="activeIndex" :before-leave="beforeLeave" @tab-click="tabClick">
          <el-tab-pane label="基本信息" name='0'>
            <el-form-item label="商品名称" prop="goods_name">
              <el-input v-model="addGoodsForm.goods_name"></el-input>
            </el-form-item>
            <el-form-item label="商品价格" prop="goods_price">
              <el-input v-model="addGoodsForm.goods_price" type="number"></el-input>
            </el-form-item>
            <el-form-item label="商品重量" prop="goods_weight">
              <el-input v-model="addGoodsForm.goods_weight" type="number"></el-input>
            </el-form-item>
            <el-form-item label="商品数量" prop="goods_number">
              <el-input v-model="addGoodsForm.goods_number" type="number"></el-input>
            </el-form-item>
            <el-form-item label="商品分类" prop="goods_cate">
              <el-cascader
                v-model="addGoodsForm.goods_cat"
                :options="goodscatelist"
                :props="cateProps"
                @change="handleCateChange">
              </el-cascader>
            </el-form-item>
          </el-tab-pane>
          <el-tab-pane label="商品参数" name='1'>
            <el-form-item :label="manyTableData.attr_name" v-for="item in manyTableData" :key="item.attr_id">
              {{item.attr_name}}
              <el-checkbox-group v-model="item.attr_vals">
                <el-checkbox :label="item2" v-for="(item2,index) in item.attr_vals" :key="index" border></el-checkbox>
              </el-checkbox-group>
            </el-form-item>
          </el-tab-pane>
          <el-tab-pane label="商品属性" name='2'>
            <el-form-item :label="item.attr_name" v-for="item in onlyTableData" :key="item.attr_id">
              <el-input v-model="item.attr_vals"></el-input>
            </el-form-item>
          </el-tab-pane>
          <el-tab-pane label="商品图片" name='3'>
            <el-upload
              action="http://timemeetyou.com:8889/api/private/v1/upload"
              :on-preview="handlePreview"
              :on-remove="handleRemove"
              list-type="picture"
              :headers="headersObj"
              :on-success="handleSuccess">
              <el-button size="small" type="primary">点击上传</el-button>
            </el-upload>
          </el-tab-pane>
          <el-tab-pane label="商品内容" name='4'>
            <quill-editor v-model="addGoodsForm.goods_introduce"></quill-editor>
            <el-button type="primary" class="btnadd" @click="goodsAdd">添加商品</el-button>
          </el-tab-pane>
        </el-tabs>
      </el-form>

    </el-card>

    <el-dialog
      title="图片预览"
      :visible.sync="previewVisible"
      width="50%">
      <img :src="imgURL" alt="预览" class="preimg">
    </el-dialog>

  </div>
</template>

<script>
import _ from "lodash";
export default {
  name: "Addgoods",
  data(){
    return {
      activeIndex: '0',

      // 基本信息表单数据
      addGoodsForm: {
        goods_name : '',
        goods_price : 0,
        goods_number : 0,
        goods_weight : 0,
        goods_cat : [],
        pics: [],
        goods_introduce: '',
        attrs: [],
      },
      addGoodsFormrules: {
        goods_name: { required: true, message: '请输入商品名称', trigger: 'blur' },
        goods_price: { required: true, message: '请输入商品价格', trigger: 'blur' },
        goods_weight: { required: true, message: '请输入商品重量', trigger: 'blur' },
        goods_number: { required: true, message: '请输入商品数量', trigger: 'blur' }
         
      },
      goodscatelist: [],
      cateProps: {
        expandTrigger: 'click',
        label: 'cat_name',
        value: 'cat_id',
        children: 'children'
      },
      manyTableData: [],
      onlyTableData: [],
      headersObj: {
        Authorization: window.sessionStorage.getItem("token")
      },
      imgURL: "",
      previewVisible: false,
    }
  },
  created(){
    this.getgoodscatelist();
  },
  computed: {
    cateId(){
      return this.addGoodsForm.goods_cat[2];
    }
  },
  methods:{
    async getgoodscatelist(){
      const {data: res} = await this.$http.get("/categories");
      // console.log(res);
      if(res.meta.status !== 200) return this.$message.error("获取分类信息失败");
      this.goodscatelist = res.data;
      // console.log(this.goodscatelist);
    },

    handleCateChange(){
      // console.log(this.selectCateKeys);
      // console.log(this.addGoodsForm.goods_cat);
    },

    beforeLeave(activeName,oldActiveName){
      if(oldActiveName === '0' && this.addGoodsForm.goods_cat.length !== 3){
        this.$message.error("请先选择商品分类")
        return false;
      }
      return true;
      // return false;
    },

    async tabClick(){
      if(this.activeIndex === '1'){
        const {data: res} = await this.$http.get(`categories/${this.cateId}/attributes`,{
          params: {sel: 'many'}
        });
        if(res.meta.status !== 200) return this.$message.error("获取商品参数失败");
        res.data.forEach(item=>{
          item.attr_vals = item.attr_vals.split(",");
        })
        this.manyTableData = res.data;
        // console.log(res.data);
      }else if(this.activeIndex === '2'){
         const {data: res} = await this.$http.get(`categories/${this.cateId}/attributes`,{
          params: {sel: 'only'}
        });
        if(res.meta.status !== 200) return this.$message.error("获取商品参数失败");
        this.onlyTableData = res.data;
        console.log(res.data);
      }
    },

    handlePreview(file){
      // console.log(file);
      this.imgURL = file.response.data.url;
      this.previewVisible = true;
    },

    handleRemove(file){
      const temPath = file.response.data.tmp_path;
      const index = this.addGoodsForm.pics.findIndex(item=>{
        item.pic = temPath
      });
      this.addGoodsForm.pics.splice(index,1);
      // console.log(this.addGoodsForm,"test2");
    },

    handleSuccess(response){
      // console.log(response);
      this.addGoodsForm.pics.push({
        'pic': response.data.tmp_path
      })
      // console.log(this.addGoodsForm);
    },

    goodsAdd(){
      this.$refs.addGoodsForm.validate(async valid=>{
        if(!valid) return this.$message.error("请填写必要的表单项")
        const form = _.cloneDeep(this.addGoodsForm);
        form.goods_cat = form.goods_cat.join(",");
        // console.log(form);
        // this.manyTableData.forEach(item=>{
        //   const attrInfo = {
        //     attr_id: item.attr_id,
        //     attr_value: item.attr_vals
        //   };
        //   this.addGoodsForm.attrs.push(attrInfo);
        // })

        // this.onlyTableData.forEach(item=>{
        //   const attrInfo = {
        //     attr_id: item.attr_id,
        //     attr_value: item.attr_vals
        //   };
        //   this.addGoodsForm.attrs.push(attrInfo);
        // })
        
        form.attrs = this.addGoodsForm.attrs;
        // form.attrs.attr_value = form.attrs.attr_value.join(",");
        // console.log(form);
        const {data: res} = await this.$http.post("/goods", form);
        // console.log(res);
        if(res.meta.status !== 201) return this.$message.error("添加商品失败")
        this.$message.success("添加商品成功")
        this.$router.push("/goods");
      })
    }
  }
}
</script>

<style>
  .addgoodscard{
    margin: 30px 0px;
  }

  .el-steps{
    margin: 30px 0px;
  }
  .el-step__title{
    font-size: 14px;
  }

  .preimg{
    width: 100%;
  }

  .btnadd{
    margin-top: 15px;
  }
</style>